Machete



W. F. PACKARD.

EDGE FINISHING MACHlNE.

APPLICATION FILED FEB-5.1918.

1,317,452 Patented Sept. 30,1919.

2 SHEETS-SHEET l.

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W. F. PACKARDE EDGE FINISHING MACHINE.

APPLICATION FILED FEB. 5. 191a.

Patented Sept. 30, 1919.

2 SHEETS-SHEET 2- WILLIAM F. PACKARD, 0F BROCK'ION, MASSACHUSETTS.

EDGE-FINISHING- MACHINE.

Specification of Letters Patent.

Patented Sept. 30, 1919.

Application filed February 5, 1918. Serial No. 215,751.

To all whom it may concern:

Be it known that I, WILLIAM F. PACKARD, a citizen of the United States, residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented a new and useful Improvement in Edge-Finishing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to edge finishing machines and more particularly to machines and devices for finishing the edges of leather and other materials. p r

The main object of my invention is to provide a finishing machine which is durable, highly efficient, simple in construction and operation, and capable of being operated by relatively unskilled workmen.

Another object of the invention resides in the provision of means for holding the work operated upon by the machine and in means for feeding the work so held.

Other objects will be in part obvious and in part particularly pointed out and described hereinafter.

The invention consists of the various features of construction, combination of elements and arrangements of parts which will be exemplified by the construction hereinafter set forth and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings, wherein is shown one of the various possible embodiments of the invention:

Figure 1 is a view in side elevation of a finishing machine embodying the invention; Fig. 2 is a top plan view of the same; Figs. 3 and 4: are top plan views of diflerent pattern feed clamps; and Fig. 5 is an enlarged sectional view of one of the pattern feed clamps shown in operative relation with the table and finishing tool.

Briefly, the preferred embodiment of my invention contemplates a machine having a suitable rotating tool for finishing the edge of material brought in contact therewith, a suitable patterned clamp for holding the material in such manner that the edge cannot be bent or deflected when brought into contact with the finishing tool said machine and said clamp being provided with means whereby the clamp is fed progressively in order to present the entire edge of the naterial progressively to the action of the rotating finishing tool.

Referring now more particularly to the drawings, a bed is indicated at 1 supported by suitable uprights or legs 2 carrying a work table 3. Mounted on the upperpart of the bed 1 is an overhanging arm t terminating at its outer end in upper and lower yoke portions 5 and 6. An edge finishing.

tool which is indicated generally at 7 comprises a comparatively long spindle 8, a pair of journal blocks 9 and 10, a driving ,pulley 11 formed on the upper end of a sleeve 12, an annularly grooved collar 18 and a finishing or burnishing iron 16 fixed to the lower end of the spindle 8. The upper j ournal block 9 is pivotally mounted within oppositely disposed walls 17 of the upper yoke 5 by means of supporting pins 18 threaded into the walls 17 and having conical bearing points adapted to engage with similar recesses formed in the block 9. The bearing block 10 is arranged within oppositely disposed walls 20 of the lower yoke portion 6 and is provided with arcuate grooves 21 concentric with the pivot points 18 and adapted to receive pins 22 tapped in either side of the yoke to project into the grooves 21. It is to be understood that the spindle 8 may rotate freely in the bearing blocks 9 and 10; the sleeve 12, however, carrying driving pulley 11, is arranged between the bearing blocks 9 and 10 and adapted for rotative movement with the spindle 8 by means of a pin 24 projecting diametrically through the sleeve 12 and through a vertical. slot 25 provided in the spindle 8. V The spindle, therefore, is adapted for vertical movement relatively to the sleeve 12. The annularlyinto and out of operative position. A bowed 105 leaf spring 37 is adapted to yield to permit movement of the handle from one pos1 t1on t0 the other and serves, as W111 be ObVlOllS,

. 12. threaded portion 57 adapted for engagement to cooperate with a projection 38 on the lever to yieldingly lock the operating means in either of the two positions.

The overhanging arm 4 is formedwith a bore 40 extending inwardly from the lower yoked portion 6, which bore i's'a'dapted to receive an expansile spring 41, one end of which seats upon the bearing block 10 and the other end of which reacts against the end of the bore 40. A1'sc',"there is provided at the, outer end of the lower yoked portion 6 an end" cap 42 attached to the opposite end walls of the lower yoked portion by means of screws 43. This cap is bored to receive an expansile spring 44 similar to the spring 41' which bears on an opposite side of the bearing block 10 and reacts upon an adjustable follower 45, the position of the latter in thebore being governed by means of a screw 46'havin'g a knurled operating head 47 Attached to depending projection 50 ofthe end cap'42' and lying in a horizontal plane is a guard or shield 48 above which the finishing iron 16 is adapted to retract when the mechanism is in inoperative position;

From the foregoing it will be noted that the 1 fixed annularly grooved collar 13' is adapted to bear against the bearing block 9, which is pivotally mounted and held against vertical displacement,- so that down ward movement of the spindle is limited by the cooperation of said block and said 001- lar; and that the bearing block 10 is adapted to oscillate slightly about the oint 18 as a pivot, but this block is norma ly held in a definite but yieldingposition due to the application of'sprin-g pressure on either side thereof 5 that the spindle 8 has a range of substantially verticalinovement relatively totheblocks 9 and 10 and the sleeve 12,an'd

that the sleeve 12 and collar 13 are adapted for rotary movement with the spindle 8.

passes around the pulley 54over' the idlers 56, jou -naled in the overhanging arm 4 and around the pulley 11 formed on the sleeve This main shaft is provided with a with a worm wheel 58 which in turn is fixed on the end of a short vertical shaft 59 projecting upwardly through the bed 1 and having fixed thereon at its upper end a feed rollerfiO of substantial diameter It should be observed that by means of the power transmitting devices just described, the

spindle 8 will be operated atfcomparatively high speed while the feed roller 60 is operated. at LO sp The bore 61 in ,theend bf united '1 is aineter.

tively to the bed and table. The block and roller are, however, normally urged in a direction toward the main feed roller 60 by means of a spring 66 having one end bearing upon the block and the other end reacting upon the plate 67 secured to the endof the bed 1 opposite the bore 61. In order to heat the operating tool 16 and maintain it at a high temperature and thereby burnish the edge of the material being finished, a gasburner 68 isprovided having its nozzle in close proximity to the tool 16.

The tool operation and mechanism having been'described the construction of a preferred' form of pattern clamp follows.

The pattern feed clamp comprises upper and lower clamping templets 7 0 and 71,

to the lower member 71 and adapted to reeeive a wedge 75. The lower member is equipped with a rail 76 corresponding in general configuration to the edge to be fini'shed. This rail is adapted to rest upon the table 3 in operation and is receivable between the cooperating feed rollers 60 and 64, whereby a slow feed action is transmitted to the pattern. t a I In operation,the handle 35 having been :thrown to the left to raise the spindle 8, the

pattern, having securely clamped between the upper and lower members thereof a vamp or other article, the edge of which it is desiredto finish, is moved into position to engage one end of the feed rail 76, with the feed roller 6O. The roller 64 being urged withconsidera'ble pressure against the other side of the raihand if desirable, being provided with some friction coating, imparts a slow. feeding movementto' the pattern, The handle 35 is then' rnoved to the right in Fig; 1, whereby the spindle8 is lowered and the tool16 urged against a projectinged'ge 80 of the vamp. The spindle is continuously rotating at high speed and as the pattern or templet travels on the rails 76 at comparativelylow speed with the burnisher 16 bearing against the edge 80, the

latter is given a highly polished appearance and even form. It should be notedithatin manlpulating thepattern toward and} from the table it is unnecessary to discontinue the rotation of the spindle or the feed mechanism. The work being finished is securely held between the clamping members by means of the wedge 7 5, the rail 7 6 insuring a proper positioning of the work opposite the tool and supporting the pattern in. such.

a way that the same is automatically guided and controlled.

As many changes could be made in the above construction and as many apparently widely different embodiments ofthe invention could be made without departing from the scope thereof, it is intended that all matter set forth in the foregoing description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

What I claim is 1. In a finishing machine, in combination, a high speed burnishing tool, a low speed pattern feed, and a pattern adapted to be moved by said pattern feed, said pattern comprising pattern feed engaging means and a clamping device which in operation exposes a marginal edge of the work to the action of said tool.

2. In a finishing machine, in combination,

a high speed finishing tool, a low speed pat tern feed, and a pattern adapted to be moved by said pattern feed, said pattern comprising pattern feed engaging means and a hinged clamping device which in operation exposes a marginal edge of the work to the action of said tool.

3. In a finishing machine, in combination, a yieldable high speed finishing tool, a low speed pattern feed, and a pattern adapted to be correlated with said feed, said pattern comprising upper and lower relatively hinged clamping faces, having co-extensive pattern edges, adapted to hold the work in operative position with a marginal edge thereof exposed to the'action of said finishing tool.

4. In a finishing machine, in combination, a yieldable high speed finishing tool, a low speed pattern feed, a pattern adapted to be correlated with said feed, said pattern comprising upper and lower relatively hinged clamping elements having cooperating clamping faces and co-extensive pattern edges, adapted to hold the work in operative position with a marginal edge thereof exposed to the action of said finishing tool, and a feed templet positioned on the under side of the lower clamping element.

5. In a finishing machine, in combination, a yieldable high speed finishing tool, a low speed pattern feed, comprising a pair of rotary members yieldingly urged toward relative engagement, a pattern adapted to be correlated with said feed, said pattern comprising upper and lower relatively hinged clamping elements having clamping faces and co-extensive pattern edges, adapted to hold the work in operative position with a marginal edge thereof exposed to the action of said finishing tool, and a feed templet positioned on the under side of the lower clamping element, adapted for movement between said rotary feed members.

y 6. In a finishing machine, in combination, a rotatable finishing tool, .a table, a pattern adapted to be movably mounted on, said table, said pattern comprising a feed-rail adapted to rest on said table, a pair of coacting clamping faces at least one of which has a pattern ec ge, means for securing said faces in clamped relation with work between and an edge exposed, and means adapted to act upon said feed-rail to move the pattern relatively to said tool so that said exposed edge is presented to the action thereof.

7 In combination, a rotatable edge finishing tool, a flat table, a pattern device adapted to be movably mounted on said table and comprising upper and lower work clamping faces, means to secure work therein with an edge exposed, pattern guiding means, and means for causing relative feeding movement between said tool and pattern device.

8. In combination, a rotatable edge finishing tool, a fiat table, a pattern device adapted to be movably mounted on said table and comprising upper and lower work clamping faces, means to secure work therein with an edge exposed, pattern guiding means, means for causing relative feeding movement between said tool and pattern device, and quick operative means for moving said tool into and out of operative position in order to allow said pattern to be presented and withdrawn.

9. In a finishing machine, the combination of a rotatable edge burnishing tool, work-holding means having provision for holding the edge to be burnished against bending when in engagement with the said burnishing tool and means for operating the said work-holding means so as to present the entire edge of the work progressively to the action of the burnishing tool.

10. In a finishing machine, in combination, a high speed burnishing tool arranged in perpendicular relation to the work to be finished, a low speed pattern feed, and a pattern adapted to be moved by said pattern feed, said pattern comprising pattern feed engaging means and a hinged clamping device which in operation exposes a marginlal edge of the work to the action of said too 11. In a finishing machine, in combination, a high speed finishing tool, means for heating said tool, a low speed pattern feed, and a pattern adapted to be moved by said pattern feed, said pattern comprising pattern feed engaging means and a clamping device which in operation exposes a marginlal edge of the work to the action of said too 12. In a finishing machine, in combination, a high speed finishing tool, means for heating said tool, a low speed pattern feed, and a pattern adapted to be moved by said pattern feed and being so arranged as to 130 expose a marginaledge of the work to the action of said tool. 7

13. In a finishing machine, the combination of a rotating edge finishing tool, means for heating said tool, Work-holding means having provision for holding the edge to be finished against bending when in engagement with said finishing tool and means for operating the said Work-holding means so as to present the entire edge of the Work 10 WILLIAM F. PACKARD.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of, Patents;

7 Washington, D. 0. V 

